Site of Care: Outpatient Hospital Setting for Physical and Occupational Therapy - (0600) — MM 0600 | CIGNA Coverage Update

Cigna modified MM 0600, its physical and occupational therapy site-of-care policy for outpatient hospital settings, effective October 1, 2025. Here's what billing teams need to do.

Cigna Healthcare updated Coverage Policy MM 0600 to address medical necessity criteria for physical therapy (PT) and occupational therapy (OT) services delivered in outpatient hospital settings — for both adult and pediatric patients. This coverage policy applies when those services are billed against the outpatient hospital place of service rather than a freestanding clinic or office setting. The policy does not list specific CPT codes in the published data, but that doesn't reduce the financial exposure — site-of-care determinations carry significant reimbursement differences, and a failed medical necessity review here means a denied claim, not a lower-paid one.

Quick-Reference Table

Cigna Physical and Occupational Therapy Coverage Criteria and Medical Necessity Requirements 2025

The core issue with MM 0600 is site of care. Cigna's coverage policy does not simply ask whether PT or OT is medically necessary in the abstract — it asks whether the outpatient hospital setting is medically necessary for delivering those services. That's a harder bar to clear than a standard therapy authorization.

This distinction matters enormously for your billing team. A patient may clearly need physical therapy. But if Cigna determines that a freestanding clinic or office setting would have been appropriate, the outpatient hospital claim fails medical necessity — even if the therapy itself was clinically appropriate. You're defending the location, not just the treatment.

The coverage policy applies to both adult and pediatric patients. That's not a trivial detail. Pediatric cases often involve specialized equipment, infection control requirements, or clinical complexity that genuinely requires a hospital outpatient department. Build those justifications into your documentation now, because Cigna will look for them.

MM 0600 in the Cigna system functions as a site-of-care filter on top of any underlying PT or OT medical necessity determination. Think of it like this: you need to pass two tests to get paid — the service was medically necessary, and the outpatient hospital was the right place to deliver it. Failing either one produces a claim denial.

On prior authorization: the published policy summary does not explicitly state prior authorization requirements for every outpatient hospital PT and OT service, but Cigna's broader site-of-care policies frequently tie prior auth obligations to the setting determination. If your practice bills PT or OT in the outpatient hospital setting for Cigna members, confirm prior authorization requirements with your Cigna provider representative before October 1, 2025. Don't assume your current workflows cover the updated criteria.

Cigna Physical and Occupational Therapy Exclusions and Non-Covered Indications

The published policy summary does not enumerate specific exclusions. However, based on the structure of Cigna's site-of-care policies, the practical exclusion is clear: PT and OT services that can be safely and effectively delivered in a lower-acuity setting — such as a freestanding outpatient therapy clinic — will not meet medical necessity for the outpatient hospital setting under MM 0600.

This is where claim denials concentrate. Cigna reviewers will look for documentation that explains why the hospital outpatient environment was required. Absence of that documentation is treated the same as absence of medical necessity. If your providers aren't writing to the setting, your denials will tell you before long.

Coverage Indications at a Glance

The policy summary does not provide indication-level criteria with granular coverage determinations. The table below reflects the structural framework that MM 0600 establishes.

Cigna Physical and Occupational Therapy Billing Guidelines and Action Items 2025

The effective date is October 1, 2025. That gives you a finite window to fix documentation workflows, audit open claims, and train your team. Here's what to do.

If your organization has a significant volume of Cigna-covered PT and OT in hospital outpatient departments, loop in your compliance officer before the effective date. Site-of-care billing guidelines carry audit exposure, and MM 0600 modifications can create retroactive review risk if Cigna's criteria have shifted materially.

CPT, HCPCS, and ICD-10 Codes for Physical and Occupational Therapy Under MM 0600

The published MM 0600 policy data does not list specific CPT, HCPCS, or ICD-10 codes. This is worth flagging directly: the absence of a code list in the policy document does not mean the policy has no billing impact. It means Cigna is applying the site-of-care determination broadly across the therapy code set rather than restricting it to specific procedure codes.

For physical and occupational therapy billing in the outpatient hospital setting, the relevant CPT codes your team uses — therapeutic exercises, therapeutic activities, neuromuscular re-education, manual therapy, and evaluation codes — all fall within scope of this policy. Cigna's site-of-care review applies at the claim level based on place of service, not by individual procedure code.

What to do given no published code list: Request the full policy document directly from Cigna, including any attached billing guidelines that reference specific procedure codes. Your Cigna provider portal or provider relations contact is the fastest path to that information. Do this before October 1, 2025.

Check PayerPolicy for version diffs between prior and current MM 0600 versions — if codes were added or removed in this modification, the line-by-line comparison will show you exactly what changed.